no economists can say mit rom if i's tax plan adds $5 trillion when i say i will not add to the tax plan with my plan. >> for 18 months you've been running on this tax plan. now five weeks before the election, he's saying that his big bold idea is never mind. >> reporter: so a lot of back and forth during the debate. it was difficult to tell at times who was telling the truth. one thing as i mentioned, one thing that was noticeably absent from the debate were the personal attacks, especially that president obama never once mentioned romney's 47% comment, his taxes, his offshore bank accounts, none of that but still even without the personal attacks, that didn't turn away viewers. this was the most tweeted about political event in u.s. history. andrea, mike, get this. 10.3 million tweets about the debate in just 90 minutes. amazing. >> it is. thank you. we'll keep following this and have more reports later on in the morning from kristen fisher -- kristin fisher. >>> the morning after reports have mostly given the debate win to mitt romney. former governor bob ehrlich says president obama